package mid.class3;

public class Code01_F {

    public static void main(String[] args) {
        int f = f(50);
        System.out.println("f = " + f);
    }
    public static int f(int N) {
        if (N <= 1) {
            return N;
        }

        return f(N - 1) + f(N - 2);
    }
}
